Carbureter.



Patenfedngc. 3o, |902.

J. P. NA-GEL. CARBURETER. (Application led Sept. 26, 1901.)

Jus No-nms versus cm Pno'rouma. wmimcron. nA c. l

NITED TATES ATENT Prion.

JOHN P. NAGEL, OF CHICAGO, ILLINOIS.

CRBURETER.

SPECIFICATION forming part of Letters Patent No. 717,444, dated December30, 1902.

Application filed September 26, 1901. Serial No. 76,700. (No model.)

T0 all whom, it may concern:

Be it known that I, JOHN P. NAGEL, a citi zen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Gas-Machines, of whichthe following is a specification, referencebeing had to the accompanyingdrawings.

My invention relates to that class of machines in which a combustible orinflammable gasis produced by the volatilization of a suitable liquid,such as gasolene.

The primary object of my invention is to provide an apparatus by whichthe liquid employed may be rapidly transformed into vapor.'

Another object is to provide for .maintaining the vapor under pressuresufficient to force it to the burner or burners.

A further object is to intermix the vapor or gas with sufcient air tosecure the greatest eiiiciency in its combustion.

Still another object of the invention is to provide a gas-generator ofsimple construction and the interior parts of which shall be easy ofaccess for repair or renewal when necessary.

Other minor objects and aims of the invention will be apparent from thesubjoined de-g scription.

To the above ends my invention consists of a gasmachine having thepeculiarities ofr structure and mode of operation hereinafter described,and more particularly defined in the appended claim.

A preferred embodiment of my invention is illustrated in theaccompanying drawings, in which- Figure 1 is an elevational View, incentrall vertical section, of a gas-machine embodying my improvements;and Fig.,2 is a transverse sectional plan View on line 2 2 of Fig. 1.

Referring to the drawings for a detailed description of the same, 3Vrepresents the body or shell of the machine, here shown ascylindrical,although the particular conformation is immaterial. The 'pbody is closedat the bottom by a plate or cover 4, having .a screwthreaded v or otherengagement therewith, while a dome-shaped cap or cover 5 similarlyengages the top of the body or shell 3, closing the upper end of thesame. This cover 5 is provided in its apex with a screw-threaded nozzle6, to which the service-pi pe (not shown) is connected, and afilling-aperture 7. v'Ihe body or shell 3 of the device is tapped at itslower end by an air-inlet pipeS, provided with a suitablecontrolling-valve 9, while a petcock 10, also applied to the body 3 nearits lower end, determines the height to which liquid may rise in thelatter.

` Within the shell 3are disposed on inwardlyextending brackets 1l aseries of shallow pans or trays 12. Each'tray has its bottom providedwith a series of apertures 13, each aperture being surrounded by anupstanding tube 14 slightly less in height than the tray itself. Theseapertures are so disposed in the bottoms of the several trays that when`the latter are in position none of the apertures will fall in the samevertical line. The object of this construction will appear later in thedescription of the operation of the device. Soldered or otherwisesuitably secured to the bottoms of the several trays are a series ofbent-wire racks 15 or equivalent upstanding supports, these racks beingdesigned to support strips of woolen cloth, felt, or other suitableabsorbent material, (designated by 16,) the lower ends of which stripsextend practically to the bottoms ot' the trays. These absorbent strips16 are disposed in close juxtaposition, sufficient space only being lefttherebetween for the free passage of the air-current rising through thereceptacle. My preferred arrangement contemplates the disposition ofthese absorbent `devicesin such a manner that the devices carried by onetray will lie in a vertical plane at Van. angle (preferably a rightangle) to the similar devices carried by the next adjacent trays aboveand below.

It will be `understood that the top or cover 5 constitutes agas-reservoir, in which the gas generated accumulates. An ordinarypressure-gage (indicated at 17) may be applied to the dome 5 to indicatethe pressure existing therein at any given time. In connection with theVair-inlet pipe 8 I also prefer to em'- ploy an ordinary check-valve(indicated at 18) to prevent backflow into the air-pipe 8.

The operation of my invention will be readily nnderstood from theforegoing description, taken in connection with the illustration in theaccompanying drawings, but may be IOO briey described as follows: Theliquid employed in the device is hydrocarbon which readily volatilizes,such as gasolene. The machine is charged with the liquid by pouring thelatter through the filling-aperture '7, in which filling operation theliquid first rises in the topmost tray until it reaches the height ofthe tubes 14, whereupon it overflows through the latter into the secondtray from the top and in this manner through the entire series of traysuntil it rises at the bottom of the receptacle to the height permittedby the petcock lO. Upon the filling of the several trays 12 in themanner described the liquid is at once absorbed by the mantles 16, thelower ends of which are immersed in the fluid. The machine having thusbeen filled and charged the filling-aperture is closed, and upon openingthe air-valve 9 a current of air under pressure is admitted to the baseof the receptacle through the pipe 8. This air bubbles up through theliquid in the bottom of the receptacle, rises thence around and throughthe several trays 12 successively, and in so doing comes into intimatecontact with the surfaces of the mantles 16 and passing more or lessthrough the same, which, it will be remembered, are constantly in asaturated condition, and 4consequently freely give up the liquid whichvthey hold in the form of vapor to the passing current of air. Thesemantles 16 being as numerous as the capacity of the receptacle willpermit present a sum-total surface area to the Contact of the risingcurrent which is very considerable, and their effect in charging theair-current with the vapor which they yield up is increased by disposingthe mantles in the trays at angles to each other, thereby morethoroughly and effectively breaking up .and subdividing the risingcurrent.

The absorbent nature of the material of which the mantles 16 arecomposed keeps the same constantly saturated by capillary attraction solong as any liquid remains in the trays. y After the liquid has beenexhausted the device can be recharged by simply pouring a fresh supplythrough the filling-aperture until the overflow at petcock 10 indicatesthat the machine is fully recharged. The interior parts may be readilygotten at by simply unscrewing the top or cover 5 and removing theseveral trays one after the other. The trays may be given any capacityfound best suited to the proper charging of the air by varying the depthof the trays and the height of the overflow-tubes 14. Any number oftrays up to the limit of the capacity of the receptacle may be employed,the number of trays ordinarily depending upon the height given to theabsorbent mantles 16.

Where the latter are given a less vertical extent, of course a greaternumber of trays may be employed, and vice versa. It will be readilyunderstood, therefore, that it is immaterial to the principle of myinvention how many trays are employed, or how many overflow-apertures ineach tray, or the exact number, dimensions, or material of the mantles16, or the specific means herein shown for supporting the latter, or theparticular configuration of the receptacle or any of its containedparts, since all of these details may obviously be varied to any desiredextent within the scope and purview of myinvention.

The pressure of the gas in the generator may be varied by pumpingthereinto a greater or less volume of air; but ordinarily the pressureneed not be great, although the contents of the generator should alwaysbe under pressure enough to secure a ready discharge of the gasgenerated.

The introduction of air as described not only promotes volatilization,but it supplies the oxygen necessary to cause the gas to burn with anintensely-hot flame suitable for use with incandescent burners, in gas-vranges, 85e. The character of the flame may of course be varied inother ways, as by regulating the quantity of air admitted to the burner.

That which I claim as my invention, and desire to secure by LettersPatent, is-

A gas apparatus consisting of an upright receptacle, an air-inlet pipecommunicating with said receptacle at the bottom thereof, a check-valvearranged within the bottom of the receptacle and in suitable relation tothe said air-inlet pipe to prevent backflowtherein, a series of shallowpans or trays disposed one above the other throughout the interior ofthe said receptacle, a plurality of verticallyextending overiiow-tubesconnected with the bottom of each of said trays, a series of rackscarried by each of said trays, the racks of one tray extending in anopposite direction to the racks of the adjacent tray, mantles ofabsorbent material mounted upon said racks, a series of racks mountedupon the bottom of the receptacle, mantles of absorbent material mountedupon the racks upon the bottom of the receptacle, a dome secured to thetop of the receptacle and forming a gas-reservoir, a gas-dischargeopening in the apex of the dome, said dome further provided with afilling-aperture, a pressuregage connected with the dome, and a petcockconnected to the lower end of the receptacle, substantially as hereinshown and described.

JOHN P. NAGEL.

Witnesses:

JULIA M. BRISTOL, HELEN M. COLLIN.

